Towards the end of the match, there was the first altercation between the pair with Lewis stopping the Spaniard visibly annoyed including shouting some expletives at the new tour card holder so this wasn't a past problem between the pair.
The tension intensified after the game where Lewis seemingly had physical contact with Perales. The two players even had to be separated by tournament officials.
It remains to be seen if Lewis or Perales will face ramifications from the DRA. Whether that is a warning, ban or a fine for either player but for Lewis he did not go further in the tournament losing to Michael van Gerwen after the victory over Perales.
Watch the incident after the match below :
https://twitter.com/_lukebeaumont/status/959510438911315970
Click here for the 2018
UK Open Qualifiers Calendar and how the UK Open Qualifiers exactly work.